Which RFC defines private IP address ranges?

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Multiple Choice

Which RFC defines private IP address ranges?

Explanation:
Private IPv4 addressing is defined by RFC 1918. It specifies three blocks reserved for use inside private networks and not routable on the public Internet: 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. These ranges let organizations design internal networks without consuming globally unique addresses, typically used behind NAT when connecting to external networks. The other RFCs cover different IPv4 topics: the original IPv4 specification is in RFC 791, and RFC 3330 and RFC 5735 describe special-use addresses (ranges set aside for specific purposes like loopback, documentation, or multicast), not the private internal ranges. So the document that defines private address ranges is RFC 1918.

Private IPv4 addressing is defined by RFC 1918. It specifies three blocks reserved for use inside private networks and not routable on the public Internet: 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. These ranges let organizations design internal networks without consuming globally unique addresses, typically used behind NAT when connecting to external networks. The other RFCs cover different IPv4 topics: the original IPv4 specification is in RFC 791, and RFC 3330 and RFC 5735 describe special-use addresses (ranges set aside for specific purposes like loopback, documentation, or multicast), not the private internal ranges. So the document that defines private address ranges is RFC 1918.

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